Principle Of Operation; Precautions You Must Take - ETNA A390 Anleitung

Principle of operation

4
3
2
1
Fig. 1: Principal of operation
The hotplate (2) contains a coil (1) that generates
an alternating magnetic field (3).
If a pan (4) with an iron base is placed above the
coil there will be a very rapidly changing
magnetic field in the pan bottom. This will
generate heat in the base of the pan.
Advantages
Cooking by induction has a number of
advantages:
Because of the high power of the induction
hob pans are brought to the boil very quickly.
Always keep this in mind and stay close to
the pan. Further cooking takes the same time
as with cooking by other means. Potatoes are
not cooked through faster, but are brought to
the boil faster. Induction hobs are very
suitable for the use of pressure cookers. The
cooker reaches its working pressure very
rapidly.
The cooking zone responds very quickly.
As soon as a cooking zone is switched off no
further heat will be added. The results of the
lower power are then immediately visible.
The electronic control is accurate and simple
to set. The lowest setting is lower than for
any other method of cooking. Using the
lowest setting you can melt chocolate in a
pan without a bain marie.
When the pan has been removed the cooking
zone cools very quickly. Cleaning the hob is
simple. Ceramic hobs with heating elements
have the disadvantage that food can burn in.
Induction hobs do not have this disadvantage.
Fig. 2: Heat loss with conventional hob
Fig. 3: No heat loss with induction hob
The heat is generated in the pan itself.
This reduces the heat losses to a minimum. If
you use a pan with a diameter smaller than
that of the cooking zone there are also no
losses. An incidental advantage is that the
pan handles do not get hot.

Precautions you must take

Induction cooking is extremely safe. Because
the heat is generated in the pan and the ceramic
plate will not get hotter than the contents of the
pan, the chance that you will burn yourself on
the hob is very slight. However, there are, as
with any other hob, a number of matters of which
you should be aware.
When you use the hob for the first time, you
will notice that it smells "new". This is
caused by the appliance's finish heating up. It
is perfectly normal. The odour will disappear
of its own accord as a result of ventilation.
This appliance should only be connected to
the mains supply by a qualified electrician.
The power supply must be disconnected
before the appliance is cleaned or repaired.
Preferably, by removing the plug from the
socket, switching off the (automatic) fuse(s)
or setting the switch in the supply cable to
zero in the case of a fixed connection.
This cooking appliance is designed for
domestic use. Do not use the appliance for
any purpose other than food preparation.
Remember the very short heating up time at
the higher settings. Always stay close to the
hob if you have a cooking zone on a high
setting (8 or 9).
Take care that the pan does not boil dry.
Damage caused by the use of unsuitable
pans and by pans boiling dry is excluded from
the warranty.
Never let an empty pan stand on a hotplate
that is switched on. While the hotplate is
protected and will switch itself off, the pan
will be extremely hot. The pan could be
damaged.
The ceramic plate is very strong but certainly
not unbreakable. When, for example, a herb
jar or a pointed object is dropped onto it a
break can be caused.
When a hob is broken or cracked it should be
used no longer. Immediately switch off the
hob, take the plug out of the socket and
telephone the service department.
When the induction hob is in use keep
objects that can be affected by magnetic
fields (credit cards, bank cards, diskettes,
watches and similar items) away from its
vicinity. We advise those who have
pacemakers to consult a heart specialist first.
Aluminium foil should never be used as a
container for the preparation of dishes (for
example aluminium deep freeze containers).
Aluminium foil will melt and stick to your hob
and can never be removed.
The cooking surface must not be used for
storage.
Do not place any metal objects such as
knives and forks on the cooking area. They
could become hot.
Do not use the appliance below 5 °C.